1. WIKI教程
2. 学习Groovy
3. Nested If 声明

Nested If 声明

有时需要将多个if语句嵌入到彼此内部。

本声明的一般形式是 -

if(condition) { 
   statement #1 
   statement #2 
   ... 
} else if(condition) { 
   statement #3 
   statement #4 
} else { 
   statement #5 
   statement #6 
}

以下是嵌套if/else语句的示例 -

class Example { 
   static void main(String[] args) { 
      // Initializing a local variable 
      int a = 12 
      //Check for the boolean condition 
      if (a>100) {
         //If the condition is true print the following statement 
         println("The value is less than 100"); 
      } else 
         // Check if the value of a is greater than 5 
      if (a>5) { 
         //If the condition is true print the following statement 
         println("The value is greater than 5 and greater than 100"); 
      } else { 
         //If the condition is false print the following statement 
         println("The value of a is less than 5"); 
      }  
   } 
}	     

在上面的例子中，我们首先将变量初始化为值12.在第一个if语句中，我们看到a的值是否大于100.如果不是，那么我们输入第二个for循环以查看是否a的值大于5或小于5.上述代码的输出为 -

The value is greater than 5 and greater than 100